/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #3D3D3B;
    background-color: #FFFFFF;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヒーローセクション */
.hero {
    background: linear-gradient(135deg, #0282FF 0%, #3FB7EC 100%);
    padding: 80px 20px;
    text-align: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 600px;
    width: 100%;
}

.hero-image {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    margin-bottom: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.store-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: center;
    align-items: center;
}

.store-button {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.store-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.store-button img {
    height: 50px;
    width: auto;
    display: block;
}

/* 説明セクション */
.description {
    padding: 80px 20px;
    text-align: center;
    position: relative;
}

.description::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.description .container {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.description h1 {
    font-size: 48px;
    font-weight: 700;
    color: #3D3D3B;
    margin-bottom: 16px;
}

.description .tagline {
    font-size: 24px;
    font-weight: 500;
    color: #3FB7EC;
    margin-bottom: 32px;
    letter-spacing: 0.5px;
}

.main-description {
    font-size: 18px;
    color: #555555;
    line-height: 1.9;
    background: #FFFFFF;
    border-radius: 20px;
    padding: 40px 35px;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(2, 130, 255, 0.12),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

/* 特徴セクション */
.features-section {
    background-color: #F8F9FA;
    padding: 80px 20px;
}

.features-section h2 {
    font-size: 40px;
    font-weight: 700;
    color: #3D3D3B;
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.feature-card {
    background-color: #FFFFFF;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(2, 130, 255, 0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #0282FF;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 16px;
    color: #666666;
    line-height: 1.6;
}

.screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.screenshot {
    text-align: center;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease;
}

.screenshot:hover {
    transform: scale(1.05);
}

.screenshot img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 600px;
    object-fit: cover;
}

/* 利用シーンセクション */
.use-cases {
    background-color: #FFFFFF;
    padding: 80px 20px;
}

.use-cases h2 {
    font-size: 40px;
    font-weight: 700;
    color: #3D3D3B;
    text-align: center;
    margin-bottom: 60px;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.use-case-card {
    background: linear-gradient(135deg, rgba(2, 130, 255, 0.05) 0%, rgba(63, 183, 236, 0.05) 100%);
    padding: 40px;
    border-radius: 16px;
    border-left: 4px solid #0282FF;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(2, 130, 255, 0.15);
}

.use-case-number {
    font-size: 48px;
    font-weight: 700;
    color: #3FB7EC;
    margin-bottom: 16px;
}

.use-case-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #0282FF;
    margin-bottom: 12px;
}

.use-case-card p {
    font-size: 16px;
    color: #666666;
    line-height: 1.7;
}

/* フッター */
.footer {
    background-color: #3D3D3B;
    color: #FFFFFF;
    padding: 40px 20px;
    text-align: center;
}

.footer-links {
    margin-bottom: 16px;
    font-size: 16px;
}

.footer-links a {
    color: #3FB7EC;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FFFFFF;
}

.divider {
    color: #666666;
    margin: 0 16px;
}

.copyright {
    font-size: 14px;
    color: #999999;
}

/* タブレット対応 */
@media (max-width: 768px) {
    .hero {
        padding: 60px 20px;
        min-height: auto;
    }

    .hero-image {
        max-height: 300px;
        margin-bottom: 30px;
    }

    .description h1 {
        font-size: 36px;
        margin-bottom: 12px;
    }

    .description .tagline {
        font-size: 20px;
        margin-bottom: 24px;
    }

    .main-description {
        font-size: 16px;
    }

    .features-section h2,
    .use-cases h2 {
        font-size: 32px;
        margin-bottom: 40px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 60px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .screenshots {
        gap: 20px;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .use-case-card {
        padding: 30px;
    }

    .use-case-number {
        font-size: 36px;
    }
}

/* モバイル対応 */
@media (max-width: 480px) {
    .hero {
        padding: 40px 16px;
    }

    .hero-image {
        max-height: 250px;
        margin-bottom: 20px;
    }

    .store-buttons {
        gap: 12px;
    }

    .store-button img {
        height: 42px;
    }

    .description {
        padding: 60px 16px;
    }

    .description h1 {
        font-size: 28px;
        margin-bottom: 8px;
    }

    .description .tagline {
        font-size: 16px;
        margin-bottom: 16px;
    }

    .main-description {
        font-size: 14px;
    }

    .features-section,
    .use-cases {
        padding: 60px 16px;
    }

    .features-section h2,
    .use-cases h2 {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .feature-card {
        padding: 20px 16px;
    }

    .feature-icon {
        font-size: 36px;
        margin-bottom: 12px;
    }

    .feature-card h3 {
        font-size: 18px;
    }

    .feature-card p {
        font-size: 14px;
    }

    .screenshots {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .screenshot img {
        max-height: 400px;
    }

    .use-case-card {
        padding: 20px;
        border-left-width: 3px;
    }

    .use-case-number {
        font-size: 32px;
        margin-bottom: 8px;
    }

    .use-case-card h3 {
        font-size: 16px;
        margin-bottom: 8px;
    }

    .use-case-card p {
        font-size: 14px;
        line-height: 1.6;
    }

    .footer {
        padding: 30px 16px;
    }

    .footer-links {
        font-size: 14px;
    }

    .divider {
        margin: 0 8px;
    }

    .copyright {
        font-size: 12px;
    }
}

/* ポリシーページ共通スタイル */
.policy-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.policy-header {
    background: linear-gradient(135deg, #0282FF 0%, #3FB7EC 100%);
    color: #FFFFFF;
    padding: 60px 20px;
    text-align: center;
}

.policy-header h1 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 12px;
}

.policy-header .subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

.policy-content {
    flex: 1;
    background-color: #FFFFFF;
    padding: 60px 20px;
}

.policy-content > .container {
    max-width: 900px;
}

.policy-content section {
    margin-bottom: 40px;
}

.policy-content section:first-child {
    padding-bottom: 40px;
    border-bottom: 2px solid #F0F0F0;
}

.policy-content h2 {
    font-size: 22px;
    font-weight: 600;
    color: #0282FF;
    margin-bottom: 16px;
    margin-top: 0;
}

.policy-content p {
    font-size: 15px;
    color: #555555;
    line-height: 1.8;
    margin-bottom: 12px;
}

.policy-content ol,
.policy-content ul {
    margin: 16px 0 16px 20px;
    color: #555555;
}

.policy-content li {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 8px;
}

.policy-content strong {
    color: #0282FF;
    font-weight: 600;
}

.policy-content a {
    color: #3FB7EC;
    text-decoration: none;
    transition: color 0.3s ease;
}

.policy-content a:hover {
    color: #0282FF;
    text-decoration: underline;
}

.contact-info {
    background-color: #F8F9FA;
    padding: 20px;
    border-left: 4px solid #0282FF;
    border-radius: 4px;
    font-size: 15px;
    line-height: 1.8;
    color: #333333;
}

.supplementary {
    background-color: #F0F8FF;
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid #3FB7EC;
}

.supplementary h2 {
    margin-top: 0;
}

.supplementary p {
    margin-bottom: 0;
}

/* タブレット対応 */
@media (max-width: 768px) {
    .policy-header {
        padding: 40px 20px;
    }

    .policy-header h1 {
        font-size: 32px;
        margin-bottom: 8px;
    }

    .policy-header .subtitle {
        font-size: 16px;
    }

    .policy-content {
        padding: 40px 20px;
    }

    .policy-content section {
        margin-bottom: 30px;
    }

    .policy-content h2 {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .policy-content p,
    .policy-content li {
        font-size: 14px;
    }

    .contact-info {
        font-size: 14px;
    }
}

/* モバイル対応 */
@media (max-width: 480px) {
    .policy-header {
        padding: 30px 16px;
    }

    .policy-header h1 {
        font-size: 24px;
        margin-bottom: 6px;
    }

    .policy-header .subtitle {
        font-size: 14px;
    }

    .policy-content {
        padding: 30px 16px;
    }

    .policy-content section {
        margin-bottom: 24px;
    }

    .policy-content h2 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .policy-content p,
    .policy-content li,
    .contact-info {
        font-size: 13px;
    }

    .policy-content ol,
    .policy-content ul {
        margin: 12px 0 12px 16px;
    }

    .policy-content li {
        margin-bottom: 6px;
    }

    .contact-info {
        padding: 16px;
    }

    .supplementary {
        padding: 16px;
    }
}